Let's see my currently running apps :
Chrome - no
Firefox - no
Slack - no
intellij IDEs - no
VSCode - no
Spotify - maybe kinda sortof ?
VLC - no
WhatsApp - no
Telegram - no
Steam - no
What is this consistent UI you speak of ? Most of these apps look the same on windows.
The only reason I own a MacBook is because I wanted a single device and I occasionally need to do some osx/iOS work - would be happier with windows laptop for sure
Cmd + q, Cmd + `, Cmd + p, Cmd + shift + 4
If I could do this easily these things on Windows in every application, it would be a great start. I have to use Mac and Windows for work and I still think that Mac gets in your way less than Windows do.
It's a ridiculous argument and I don't see why screen capture should be a part of the OS other than you expect it from OSX.
Besides the UX of OSX screen capture is inferior compared to Greenshot - much easier to determine the capture target and way more options - I don't want to spam my desktop with screenshots.